Enrolling by invitation

Tap Trust Intervention's Impact on Water Security and Beverage Intake

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What is being tested

Tap Trust

Behavioral
Who is being recruted

Beverage Intake

+ Child Health and Nutrition
Over 18 Years
+4 Eligibility Criteria

See all eligibility criteria

How is the trial designed

Prevention Study

Interventional
Study Start: November 2025

See protocol details

Summary

Principal SponsorStanford University
Last updated: October 30, 2025
Sourced from a government-validated database.Claim as a partner
Study start date: November 1, 2025Actual date on which the first participant was enrolled.

This clinical trial focuses on encouraging preschool-aged children and their parents or caregivers to drink more water. The goal is to see if an intervention called Tap Trust can improve their experiences and trust in their home tap water, which in turn might boost their water intake. This is important because increasing water consumption can lead to healthier lifestyle choices and prevent the consumption of sugary beverages, which are linked to various health issues. During the study, families will participate in the Tap Trust program, which aims to enhance their confidence in the safety and quality of their tap water. The study will observe and measure changes in how much water the children and their caregivers drink. By assessing the effects of this intervention, researchers hope to find a simple way to encourage healthier drinking habits in families, with no significant risks expected from participating in the trial.

Official TitleEvaluation of the Tap Trust Intervention on Water Security Experiences and Beverage Intake 
Principal SponsorStanford University
Last updated: October 30, 2025
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details
100 patients to be enrolledTotal number of participants that the clinical trial aims to recruit.
Prevention Study
Prevention studies aim to stop a disease from developing. They often involve people at risk and test things like vaccines, lifestyle changes, or preventive medications.

How participants are assigned to different groups/arms
In this clinical study, participants are placed into groups randomly, like flipping a coin. This ensures that the study is fair and unbiased, making the results more reliable. By assigning participants by chance, researchers can better compare treatments without external influences.

Other Ways to Assign Participants
Non-randomized allocation: Participants are assigned based on specific factors, such as their medical condition or a doctor's decision.
None (Single-arm trial): If the study has only one group, all participants receive the same treatment, and no allocation is needed.

How treatments are given to participants
Participants are divided into different groups, each receiving a specific treatment at the same time. This helps researchers compare how well different treatments work against each other.

Other Ways to Assign Treatments
Single-group assignment: Everyone gets the same treatment.
Cross-over assignment: Participants switch between treatments during the study.
Factorial assignment: Participants receive different combinations of treatments.
Sequential assignment: Participants receive treatments one after another in a specific order, possibly based on individual responses.
Other assignment: Treatment assignment does not follow a standard or predefined design.

How the effectiveness of the treatment is controlled
In a non placebo-controlled study, no participants receive an inert substance (placebo) to compare outcomes. Instead, all participants receive either the experimental treatment or an alternative treatment (often the Standard of Care). This method allows researchers to compare the effects of the experimental treatment with those of a different active intervention, rather than a placebo.

Other Options
Placebo-Controlled: A placebo is used to compare the effects of the experimental treatment with those of an inert substance, isolating the true treatment effect.

How the interventions assigned to participants is kept confidential
Everyone involved in the study knows which treatment is being given. This is typically used when it's not possible or necessary to hide the treatment details from participants or researchers.

Other Ways to Mask Information
Single-blind: Participants do not know which treatment they are receiving, but researchers do.
Double-blind: Neither participants nor researchers know which treatment is given.
Triple-blind: Participants, researchers, and outcome assessors do not know which treatment is given.
Quadruple-blind: Participants, researchers, outcome assessors, and care providers all do not know which treatment is given.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria
Any sexBiological sex of participants that are eligible to enroll.
Over 18 YearsRange of ages for which participants are eligible to join.
Healthy volunteers allowedIf individuals who are healthy and do not have the condition being studied can participate.
Conditions
Pathology
Beverage Intake
Child Health and Nutrition
Criteria
3 inclusion criteria required to participate
Parents/caregivers of pre-school aged children from the Healthy Drinks, Healthy Futures study childcare centers that did not receive the program
Parents/caregivers must speak English or Spanish
Parents/caregivers of preschool-age children who don't have health conditions that preclude intake of water
1 exclusion criteria prevent from participating
arents/caregivers who do not meet the inclusion criteria

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Treatment Groups
Study Objectives
2 intervention groups 

are designated in this study

This study does not include a placebo group 

Treatment Groups
Group I
Experimental
Participants will test their home tap water using kits mailed to their homes, with phone or Zoom assistance from the research team. Families with water quality concerns will receive remediation tailored to the issue (e.g., flushing guidance, filtration device and installation guidance). Participants will also receive reusable water bottles, educational handouts and videos, and phone or Zoom sessions with the research team that include motivational interviewing to set healthy beverage goals.
Group II
No Intervention
Participants will not receive water testing kits, filtration devices, or educational resources during the study. After the study concludes, participants will have access to the intervention materials.
Study Objectives
Primary Objectives

Child total plain water intake assessed via validated beverage frequency questionnaires
Secondary Objectives

Child unfiltered tap water intake via validated beverage frequency questionnaires

Child filtered tap water intake via validated beverage frequency questionnaires

Child bottled water intake via validated beverage frequency questionnaires

Child SSB intake via validated beverage frequency questionnaires

Parent/caregiver total plain water intake assessed via validated beverage frequency questionnaires

Parent/caregiver unfiltered tap water intake via validated beverage frequency questionnaires

Parent/caregiver filtered water intake via validated beverage frequency questionnaires

Parent/caregiver bottled water intake via validated beverage frequency questionnaires

Parent/caregiver SSB intake via validated beverage frequency questionnaires

Parent/caregiver-reported experiences using home tap water, including ratings of taste, odor, appearance, and smell from questionnaires

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.
This study has 1 location
Suspended
Stanford UniversityStanford, United StatesSee the location
Enrolling by invitationOne Study Center